I wondered that too, and also wondered if there is some sort of template which the buyers use. If that's true, the template approach hurts because it blurs all the buyers together when they probably need help differentiating their request.
I wondered if there was some default text in the set process buyers go through when they create a listing. Perhaps default text that started with "We would like to speak...".
Because all the blurbs start out like that, I found it hard to skim over the list (hence the blurry comment).
This may not be your problem, it may just be that all your buyers are just copying each other. Does that explain my comment any better?
Obviously they could like to contact people. They wouldn't be on the site otherwise.